1 x 0 gauge input, 2 x 4 gauge output. Scope of application: suitable for automobile cars, boats or other vehicles, protect your vehicle's audio system, can better meet your needs. Provide comprehensive protection for your car audio system. Premium quality: made of high-quality materials, hard, durable and wear-resistant, and also has a long service life. Easy to install: the ground cable splitter block is small, light, easy to install, and can be installed and used without complicated steps, which can bring you more convenience. Wonderful accessory: superior workmanship bringing a good user experience. Please check the pictures carefully before purchasing to avoid wrong purchase. Specification: Item Type: Power Distribution Block Material: Resin + Copper Conductor Material: Copper Alloy Color: Blue Size: Approx. 58 x 49 x 33mm / 2.3 x 2 x 1.3in Package List: 1 x Power Distribution Block